* {
    margin: 0;
    padding: 0;
}

.td-title {
    font-weight: bold;
}

td, th {
    color: #909399;
    padding: 10px;
    width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
    border: 1px solid #d2cece;
}

table {
    width: 100%;
    table-layout: fixed;
    border: 1px solid #d2cece;
}

button {
    width: 50px;
    height: 30px;
    /* 文字颜色为白色 */
    color: #fff;
    /* 字体设置 */
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    /* 圆角处理 */
    border-radius: 10px;
    /* button阴影设置 */
    box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, .5),
    7px 7px 20px 0px rgba(0, 0, 0, .1),
    4px 4px 5px 0px rgba(0, 0, 0, .1);
    /* 设置过渡属性  所以元素过渡 持续时间：0.3s 速度曲线类型：ease*/
    transition: all 0.3s ease;
    /* 鼠标停留时，变为小手 */
    cursor: pointer;
    border: none;
    position: relative;
    /* 行高  */
    line-height: 20px;
    padding: 0;
    margin-right: 10px;
}

.button1 {
    /* button背景色为渐变蓝色 */
    background: linear-gradient(0deg, rgba(0, 172, 238, 1) 0%, rgba(2, 126, 251, 1) 100%);
}

.button2 {
    /* button背景色为渐变红色 */
    background: linear-gradient(0deg, rgb(241, 31, 97) 0%, rgb(251, 2, 39) 100%);
}

.page-div {
    margin-top: 200px;
}

#div-table {
    height: 300px;
}

body {
    user-select: none;
}

.div-box {
    height: 100vh;
    display: flex;
}

.div-left {
    height: 100%;
    background-color: #111111;
    width: 250px; /*使用 JavaScript 更改 */
    position: fixed; /* 原地不动 */
    z-index: 1; /* 保持在顶部 */
    top: 0;
    left: 0;
    overflow-x: hidden; /* 禁用水平滚动 */
    transition: 0.5s; /* 0.5 秒过渡效果在侧边栏中滑动 */
    padding-top: 60px; /* 将内容从顶部放置 60px */
}

.div-right {
    background-color: #f8f8f8;
    transition: margin-left .5s;
    width: 100%;
    padding: 16px;
}

.div-top {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#div-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

ul {
    list-style: none;
}

.left-img {
    width: 17px;
}

li a {
    height: 50px;
    color: white;
    display: flex;
    align-items: center;
}

a {
    text-decoration: none; /*去除下划线*/
    color: #909399;
}

.div-left ul li a {
    padding-left: 20%;
}

.div-left ul li ul li a {
    padding-left: 40%;
}

ul li a:hover {
    background-color: #36b269;
}

.right-img {
    width: 20px;
    padding-left: 40%;
}

/* 用于打开侧边栏的按钮 */
.openbtn {
    font-size: 20px;
    cursor: pointer;
    position: fixed;
    background-color: #f8f8f8;
    color: white;
    padding: 10px 15px;
    border: none;
    top: 0;
    left: 250px;
    transition: 0.5s;
    display: inline-block;
}

.bar1,
.bar2,
.bar3 {
    width: 35px;
    height: 5px;
    background-color: #333;
    margin: 6px 0;
    transition: 0.4s;
}

.change .bar1 {
    transform: rotate(-45deg) translate(-9px, 6px);
}

.change .bar2 {
    opacity: 0;
}

.change .bar3 {
    transform: rotate(45deg) translate(-8px, -8px);
}


/* 在高度小于 450 像素的小屏幕上，更改 div-left 的样式（更少的填充和更小的字体大小）*/
@media screen and (max-height: 450px) {
    .div-left {
        padding-top: 15px;
    }

    .div-left a {
        font-size: 18px;
    }
}

td a:hover{
    color: #232121;
}